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Author SHA1 Message Date
Chris Lattner
0fa70f79a6 Add two options to allow -count-aa to print queries either (1) all queries, 
or (2) only queries that are not successful (e.g. return may alias)

llvm-svn: 20790
 2005-03-23 21:59:07 +00:00
Misha Brukman
934b3ca2f5 Fix grammar 
llvm-svn: 20789
 2005-03-23 21:14:33 +00:00
Chris Lattner
1dbe1592ed enable -debug-only=licm 
llvm-svn: 20788
 2005-03-23 21:00:12 +00:00
Chris Lattner
06fa97abf9 turn a dead conditional into an assert. 
llvm-svn: 20787
 2005-03-23 20:12:08 +00:00
Chris Lattner
543acffe45 Totally gut mergeInGraph. There is absolutely no reason to be merging 
global roots in from callees to callers.  The BU graphs do not have accurate
globals information and all of the clients know it.  Instead, just make sure
the GG is up-to-date, and they will be perfectly satiated.

This speeds up the BU pass on 176.gcc from 5.5s to 1.5s, and Loc+BU+TD
from 7s to 2.7s.

llvm-svn: 20786
 2005-03-23 20:08:59 +00:00
Chris Lattner
08302340ff wrap a long line 
llvm-svn: 20785
 2005-03-23 16:43:11 +00:00
Andrew Lenharth
b1bd2e2900 don't lie to the register allocator 
llvm-svn: 20784
 2005-03-23 15:20:01 +00:00
Chris Lattner
6222df7351 Make -steens-aa more conservative (aka correct) by making sure to obey 
incompleteness flags.

Make it more aggressive by taking field sensitive information into
account.

llvm-svn: 20781
 2005-03-23 01:48:09 +00:00
Tanya Lattner
d7b8fb8263 Added alias analysis. 
Fixed many many bugs.
This now works on almost all Singlesource , and most of MultiSource.

llvm-svn: 20780
 2005-03-23 01:47:20 +00:00
Chris Lattner
995ce252d8 implement Analysis/DSGraph/field-sensitive.ll 
llvm-svn: 20779
 2005-03-23 01:47:19 +00:00
Chris Lattner
1ab143408b new testcase to verify that we have field sensitive alias analysis info. This 
test cannot be satisfied without interprocedural information.

llvm-svn: 20778
 2005-03-23 01:46:59 +00:00
Chris Lattner
aa106acb77 make sure this test tests the intended target. 
llvm-svn: 20777
 2005-03-23 01:32:03 +00:00
Chris Lattner
8fa2449908 don't crash in some bad cases. 
llvm-svn: 20776
 2005-03-23 01:29:26 +00:00
Chris Lattner
6d9578f11d Several changes here: 
1. Increase max node size from 64->256 to avoid collapsing an important
   structure in 181.mcf
2. If we have multiple calls to an indirect call node with an indirect
   callee, fold these call nodes together, to avoid DSA turning apoc into
   a flaming fireball of death when analyzing 176.gcc.
  With this change, 176.gcc now takes ~7s to analyze for loc+bu+td, with
  5.7s of that in the BU pass.

llvm-svn: 20775
 2005-03-22 23:54:52 +00:00
Chris Lattner
eca518df1a We might as well check the TD graphs as well, even though they are fine. 
llvm-svn: 20774
 2005-03-22 22:11:22 +00:00
Chris Lattner
6736ff36a1 Mark external globals incomplete in the BU Globals graph, fixing 
Analysis/DSGraph/2005-03-22-IncompleteGlobal.ll

llvm-svn: 20773
 2005-03-22 22:10:22 +00:00
Chris Lattner
820eed24fb New testcase, the BU pass is marking the global complete in the globals graph. 
llvm-svn: 20772
 2005-03-22 22:07:15 +00:00
Tanya Lattner
0a21807283 Updating my entry. 
llvm-svn: 20771
 2005-03-22 21:33:19 +00:00
Chris Lattner
deb71bf41d Fix a serious bug where we didn't insert globals into the globalset when 
cloning a graph.

llvm-svn: 20770
 2005-03-22 19:44:11 +00:00
Andrew Lenharth
61312ca088 hum, it is good to use real instructions 
llvm-svn: 20769
 2005-03-22 16:42:52 +00:00
Chris Lattner
f975e2350a Directly count the number of memory instructions. 
llvm-svn: 20766
 2005-03-22 03:55:10 +00:00
Chris Lattner
b847572d0e Timers SHOULD NOT record the time taken to count the bytes allocated in the heap! 
llvm-svn: 20765
 2005-03-22 03:20:38 +00:00
Chris Lattner
361cab323a Remove an iteration pass over the entire scalarmap for each function created 
by not allowing integer constants to get into the scalar map in the first
place.

llvm-svn: 20764
 2005-03-22 02:45:13 +00:00
Chris Lattner
d1e1c51e8e When making a clone of a DSGraph from the BU pass, make sure to remember that 
this clone is supposed to be used for *ALL* of the functions in the SCC.

This fixes the memory explosion problem the TD pass was having, reducing the
memory growth from 24MB -> 3.5MB on povray and 270MB ->8.3MB on perlbmk!
This obviously also speeds up the TD pass *a lot*.

llvm-svn: 20763
 2005-03-22 01:50:42 +00:00
Chris Lattner
d36dab8b4c Don't use operator[], use the new method instead, which is faster. This speeds 
up the TD pass about 30% for povray and perlbmk.  It's still not clear why
copying a 5MB set of graphs turns into a 25MB set of graphs though :(

llvm-svn: 20762
 2005-03-22 01:42:59 +00:00
Chris Lattner
b2d5129f59 add a method 
llvm-svn: 20761
 2005-03-22 01:42:10 +00:00
Chris Lattner
0ed923c45a Now that the dead ctor is gone, nothing uses the old node mapping exported by 
cloneInto: make it an internally used mapping.

llvm-svn: 20760
 2005-03-22 00:36:51 +00:00
Chris Lattner
4264b1d97e remove a dead ctor 
llvm-svn: 20759
 2005-03-22 00:33:35 +00:00
Chris Lattner
81a96c578c now that the second argument is always this->ReturnNodes, don't bother passing it. 
llvm-svn: 20758
 2005-03-22 00:29:44 +00:00
Chris Lattner
4c9d4fe24f instead of using a local RetValMap, just use the graph we are cloning into 
for the return node map.

llvm-svn: 20757
 2005-03-22 00:25:52 +00:00
Andrew Lenharth
5bd65ee784 two things: 1)evilness reduction patch, reduces the number of instructions hiding in the small jump CC moving code. 2)implement div of small data types by FP DIV (also reduces evilness and should speed things up) 
llvm-svn: 20756
 2005-03-22 00:24:07 +00:00
Chris Lattner
bd9d33173c now that the valuemapping is always the local scalar map, we can eliminate 
this identity merge.

llvm-svn: 20755
 2005-03-22 00:22:45 +00:00
Chris Lattner
ffa612a1fd remove the second argument to cloneInto 
llvm-svn: 20754
 2005-03-22 00:21:05 +00:00
Chris Lattner
d76fbaa604 drop the second argument to cloneInto, which is always the local scalar map. 
llvm-svn: 20753
 2005-03-22 00:20:56 +00:00
Chris Lattner
940600a185 add some timers, don't clone aux nodes 
llvm-svn: 20752
 2005-03-22 00:12:00 +00:00
Chris Lattner
21b3519b2e move this out of line 
llvm-svn: 20751
 2005-03-22 00:09:45 +00:00
Chris Lattner
49d2b42d89 move this stuff out of line 
llvm-svn: 20750
 2005-03-22 00:09:36 +00:00
Chris Lattner
e1c098449c don't generate temporary scalarmaps. 
llvm-svn: 20749
 2005-03-22 00:04:21 +00:00
Chris Lattner
1ce92ebd00 allow passing clone flags down to cloneInto 
llvm-svn: 20748
 2005-03-21 22:49:53 +00:00
Chris Lattner
dc160907ad allow passing clone flags into the ctor 
llvm-svn: 20747
 2005-03-21 22:49:43 +00:00
Chris Lattner
97fc8f85d1 Enhance the TD pass to build composite graphs when we have indirect call 
sites that target multiple callees.  If we have a function table, for
example, with N callees, and M callers call through it, we used to have
to perform O(M*N) graph inlinings.  Now we perform O(M+N) inlinings.

This speeds up the td pass on perlbmk from 36.26s to 25.75s.

llvm-svn: 20743
 2005-03-21 20:31:29 +00:00
Chris Lattner
ed74103e0c add a new map 
llvm-svn: 20742
 2005-03-21 20:29:56 +00:00
Chris Lattner
8b4af69d5b make this const correct 
llvm-svn: 20741
 2005-03-21 20:28:50 +00:00
Chris Lattner
15ab6ab0c1 Fix a major problem where we didn't add call graph edges for call sites with 
more than 1 callee.  This fixes Analysis/DSGraph/FunctionPointerTable-const.ll

llvm-svn: 20740
 2005-03-21 20:20:49 +00:00
Chris Lattner
16724b79d7 New testcase, which is important to handle correctly. 
llvm-svn: 20739
 2005-03-21 20:18:51 +00:00
Misha Brukman
04d6d0666d We may be adding functions to the Module during initialization, so 
conservatively, it's modified

llvm-svn: 20735
 2005-03-21 19:22:14 +00:00
Chris Lattner
6f96fd4ebc This error message changed. 
llvm-svn: 20734
 2005-03-21 17:55:41 +00:00
Chris Lattner
7c6e697cc6 Ugh, for some reason, I can't call this unless the reference is const!?!?!? 
llvm-svn: 20732
 2005-03-21 10:00:45 +00:00
Chris Lattner
83ce1e319c The reachability cloner should add arguments to merged calls when the RHS of 
the merge has more operands than the LHS.

llvm-svn: 20731
 2005-03-21 09:39:51 +00:00
Chris Lattner
37f099ae83 Make the first operand of this method be modifiable. 
llvm-svn: 20730
 2005-03-21 09:39:20 +00:00